Insight into foresight

Needless to say, but needed to be said (written)...
"Your seduction program and website, your unflinching philosophy of
the male lifestyle, and your all around view of 'things' have meshed
well with my already stable sense of well being, and now, I would like
to simply thank you for the many additions that you have helped me to
realize AND remember about my own process of life, and how I plan to
proceed".

Non-Reckless Game or subtle Venusian Arts has always been a part of my 'style' since a young age, following me effortlessly into my late 30's...and this is due to many things:
1) Growing up with many sisters, and their many female friends/associates introduced me instantly to the dynamic of the 'female brain and action', that
later enabled an 'ease' around women that is both comfortable and exemplifies
'confidence/strength'.
2) I have honed many skills that are impressive to women (people) on
some level of dedication and discipline, and these have helped me in all facets
of life (educated career choice, boxing, martial arts, strength training, guitarist,
motorcyclist, self published author/illustrator, speaking Japanese, etc.)

3) I have always been the guy who stays fit and strong, athletic, handsome, well dressed, charismatic, and persuasive. The guy who has it easy with women, and quite often find them gravitating towards me in attempts to either game me or get gamed.
HOWEVER, ...
it was all flawed until I found your ideology of RECKLESS APPROACHING! Talk about taking all the guess work out of the Game, you've basically placed me inside your Matrix....(you being a Morpheus of sorts). Now I am outside the Matrix, and back to the basics...with an edge to my style that has made it almost impossible to keep my 'alpha intention 'at bay'. So....much appreciated, man!

But I do have a question? I'll lay it out as quickly as possible:
Spotted her, she puts herself in my path, it's a wrap if I chose it to be, I get her number, we hook up, the smash is on, I keep her on file. The dilemma...I have a girlfriend. (I'll not get into the dynamics of our relationship, but understand that I do love her and I would not want to lose her)...and that's where the BUT comes in. And it's a big one.

Now I am not asking for your opinion on how a man goes about cheating, because the truth is, if the foundation is laid out correctly from the beginning, a man doesn't have to cheat...but when it's already happening...how can a man keep his 'life' and 'relationship' safe while not so occasionally dabbling in the pleasures all men enjoy.
I do not go out to clubs, or bars or TRY to meet women for sex, yet the abundance of opportunity on just the day to day (so much skin) overwhelms me and I am merely the result of ...well...I'm just a horny guy who appreciates variety.

So, basically, how can a man comfortably juggle a new Miss while keeping the home front peaceful. Especially when those new 'pieces' are more than aware of his home situation and obvious bang-only intention.
Any thoughts?